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Tongyeong power station

Gas power plant in Gyeongsangnam-do, South Korea. Approximate location 34.9538, 128.4264.

GasGyeongsangnam-doSouth KoreaCCGT · HRSGGE Power: 7HA.02CO₂ modelled

Tongyeong power station is a 1,000 MW gas power station in Gyeongsangnam-do, South Korea. It is operated by Tongyeong Eco Power. Based on its capacity (estimated), it can supply roughly 1.1 million homes (estimated). It ranks #44 of 216 South Korea power plants by installed capacity. Commissioned in 2024, it is around 2 years old — recently built. Its modelled annual emissions are 1,453,700 t CO₂/yr (Climate TRACE), equivalent to about 339k cars driven for a year. In context, gas supplies about 27.9% of South Korea's electricity; the national grid averages 417 gCO₂/kWh (40.0% low-carbon) (2025).

1,000Source-backed capacity
1HRSG unit(s)
1,126,285homes powered (est.)
1,453,700t CO₂ / yr (Climate TRACE)
2024commissioned (~2 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-5425.

Data status

Known data

FacilityTongyeong power station Climate TRACE
CountrySouth Korea · Gyeongsangnam-do Climate TRACE
Coordinates34.9538, 128.4264 Climate TRACE
FuelGas Climate TRACE
MW installed capacity1,000 MW Climate TRACE source record; scope not independently normalised
OwnerTongyeong Eco Power Climate TRACE
Commissioned2024 Climate TRACE
TechnologyCCGT · GE Power: 7HA.02 · HRSG Climate TRACE

Modelled source data

CO₂ emissions1,453,700 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#44 of 216 calculated
Fuel-specific rank in country#20 of 77 calculated
Capacity vs country/fuel peers1.94× · 515 MW median · 77 peers calculated
Homes-powered equivalent1,126,285 calculated
Climate13.5°C · HDD 2,179 derived from coordinates
Environmental severityC4 · 43/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM tracker 2026 (location L100000406328); fuel: Climate TRACE source-record fuel

In context: how this plant compares

At 1,000 MW, Tongyeong power station is well above the median gas plant in South Korea (515 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG); GE Power: 7HA.02. Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

~1,453,700 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

339kpassenger cars driven for a year
190khomes' yearly energy use
24 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

Capacity vs largest gas plants in South Korea

Incheon: 3,052 MW3kIncheonDangjin Combined Cycle power station: 2,406 MW2kDangjin Co…Samchonpo power station: 2,120 MW2kSamchonpo …KOMIPO Incheon: 1,960 MW2kKOMIPO Inc…Boryeong (CC): 1,800 MW2kBoryeong (…Busan (pusan): 1,800 MW2kBusan (pus…Seoincheon: 1,800 MW2kSeoincheonShinincheon: 1,800 MW2kShinincheon

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Tongyeong Eco Power.

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a humid subtropical (dry winter) climate (Köppen Cwa) — Northern Hemisphere, latitude 35.0°N — which shapes how much energy it can produce and how its output varies through the year.

13.5°Cannual mean temp
2,179heating degree-days (base 18°C)
574cooling degree-days (base 18°C)
123 melevation

Monthly mean temperature

J: 2 °CJF: 3 °CFM: 7 °CMA: 13 °CAM: 17 °CMJ: 20 °CJJ: 24 °CJA: 25 °CAS: 21 °CSO: 16 °CON: 10 °CND: 4 °CD25 °C

Heating degree-days here run 11% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 46/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~0% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

Site climate & environmental severity

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with marine corrosion the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
43/100environmental-severity index
23.6°Cseasonal temperature swing
45 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #20 largest gas power plant of 77 in South Korea by capacity.

South Korea has 77 gas power plants in this dataset, together about 58,006 MW of capacity.

Nearby power plants

Location

Coordinates 34.9538, 128.4264 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Tongyeong power station?

Tongyeong power station is a 1,000 MW source-record gas power plant in Gyeongsangnam-do, South Korea, commissioned in 2024.

How many homes can Tongyeong power station power?

Its output is enough to supply roughly 1,126,285 homes (estimated).

Who operates Tongyeong power station?

Tongyeong power station is operated by Tongyeong Eco Power.

How much CO₂ does Tongyeong power station emit?

Tongyeong power station has modelled emissions of about 1,453,700 tonnes of CO₂ per year (Climate TRACE).

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